I had severe rightsided facial pain with upper toothache. MRI of head shows hypoplastic left maxillary sinus. Did this cause my pain and what is it?
Hypoplasia. Incomplete development or underdevelopment of an organ or tissue. That's what hypoplasia is. It is doubtful that is would cause severe pain, especially on the opposite side of your face. Did you get your teeth thoroughly examined? If not, now is the time to do so.